<!DOCTYPE html>
<html>
	<style type="text/css">
		body{
			font-size: 14px;
			height: 30em;
			color: white;
		}
		.bgcolor{
			background-color: #345564;
			width: 50%;
			height: 50%;
		}
	</style>
	<head>
		<meta charset="utf-8" />
		<title></title>
	</head>
	<body>
		<div class="bgcolor">
			颜色演示
		</div>
	</body>
</html>
